Ruby Developer Test

Task

Create a parser which parses log file. Parser should be run via CLI and a file should be passed as argument.

Example of content of the valid log file:

/about/2 444.701.448.104
/about/2 543.910.244.929
/contact 235.313.352.950
/home 646.865.545.408
/home 382.335.626.855
/index 929.398.951.889
/index 715.156.286.412
/help_page/1 382.335.626.855

Solution

A parser created in Ruby language. Ruby version 2.7.1. Before running the parser install required gems:

bundle install

To parse file run the parser from command line and pass the file with logs as argument:

./parser.rb webserver.log

Tests are written with rspec. To run tests:

rspec

To check styles with rubocop run:

rubocop

Features of the parser app

• Modular and maintainable structure
• A number of service object with single responsibility
• IPv4 and path validators
• Exception processing with friendly messages
• Tests coverage

Report example

Successfull parser's run output example:

Visits
/about/2 90 visits
/contact 89 visits
/index 82 visits
/about 81 visits
/help_page/1 80 visits
/home 78 visits
Users
/index 23 unique views
/home 23 unique views
/contact 23 unique views
/help_page/1 23 unique views
/about/2 22 unique views
/about 21 unique views
Average
/about/2 4 user per view
/about 3 user per view
/index 3 user per view
/home 3 user per view
/contact 3 user per view
/help_page/1 3 user per view